Remote Microphone
Input Impedance
Input Voltage
Auxiliary Input
Input Impedance
Input Voltage
Output Impedance
Unbalanced Signal Line
Unbalanced Signal Line, Standby
Balanced Signal Line
Low-Level Signal Line
Output Voltage Levels, No Load (< 3% THD)
Unbalanced Signal Line
Balanced Signal Line
Low-Level Signal Line
Output Voltage Levels, Max. Load (< 3% THD)
Unbalanced Signal Line
Balanced Signal Line
Low-Level Signal Line
Tone Output Voltage Levels, No Load (sq. wave)
Unbalanced Signal Line
Balanced Signal Line
Low-Level Signal Line
Tone Output Levels Max. Load (sq. wave)
Unbalanced Signal Line
Balanced Signal Line
Low-Level Signal Line
Audio Frequency Response, Balanced Signal Line
40 Ω Max. Load, from 250 Hz to 80 kHz
(Reference 1 kHz)
40 Ω Max. Load, from 450 Hz to 60 kHz
(Reference 1 kHz)
No Load, from 100 Hz to 90 kHz
(Reference 1 kHz)
No Load, from 200 Hz to 60 kHz
(Reference 1 kHz)
Model 300SCW-1 Wall-Mounted Command Unit
Table 1 Product specifications (continued)
Audio Outputs
Installation and Maintenance Manual
5 kΩ
16 mVrms (max.)
5 kΩ
500 mVrms (max.)
25 Ω (max.)
120 Ω
40 Ω (max.)
600 Ω
9 Vrms
17 Vrms
1 Vpp
8 Vrms (25 Ω load)
15 Vrms (40 Ω load)
1 Vpp (600 Ω load)
12 Vrms
25 Vrms
1 Vpp
12 Vrms (25 Ω load)
20 Vrms (40 Ω load
0.56 Vrms (600 Ω load)
-3 dB
-1 dB
-3 dB
-1 dB
9